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| author | Miklos Szeredi <mszeredi@suse.cz> | 2013-02-04 15:57:42 +0100 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@suse.cz> | 2013-02-04 15:57:42 +0100 |
| commit | dfca7cebc2679f3d129f8e680a8f199a7ad16e38 (patch) | |
| tree | fa519439bec5f96132af4772618f53a30d0a179f /fs/fuse | |
| parent | fuse: avoid out-of-scope stack access (diff) | |
| download | linux-dfca7cebc2679f3d129f8e680a8f199a7ad16e38.tar.xz linux-dfca7cebc2679f3d129f8e680a8f199a7ad16e38.zip | |
fuse: don't WARN when nlink is zero
drop_nlink() warns if nlink is already zero. This is triggerable by a buggy
userspace filesystem. The cure, I think, is worse than the disease so disable
the warning.
Reported-by: Tero Roponen <tero.roponen@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Diffstat (limited to 'fs/fuse')
| -rw-r--r-- | fs/fuse/dir.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index dc5e64893375..2b112d978e9f 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -705,7 +705,14 @@ static int fuse_unlink(struct inode *dir, struct dentry *entry) spin_lock(&fc->lock); fi->attr_version = ++fc->attr_version; - drop_nlink(inode); + /* + * If i_nlink == 0 then unlink doesn't make sense, yet this can + * happen if userspace filesystem is careless. It would be + * difficult to enforce correct nlink usage so just ignore this + * condition here + */ + if (inode->i_nlink > 0) + drop_nlink(inode); spin_unlock(&fc->lock); fuse_invalidate_attr(inode); fuse_invalidate_attr(dir); |